Top Indian sprinter Dutee Chand has been banned from competition for four years after she failed two doping tests, local media reported Friday.
US swimming legend Michael Phelps has spoken of his frustration at the possibility rivals were using drugs at last year's Rio de Janeiro Olympics.
Maria Sharapova said Wednesday she refused to feel sorry for herself during her doping ban, occupying her time by studying at Harvard, writing a book and even learning how to box.
Doha's anti-doping laboratory has had its accreditation suspended for four months after it failed to comply with international standards, the World Anti-Doping Agency (WADA) says in a statement.
Mo Farah, Rafael Nadal and Justin Rose are among athletes targeted in the latest leak of confidential medical documents that the world anti-doping agency (WADA) says were hacked by a Russian cyber espionage group.
Brazilian cyclist Kleber Ramos and Chinese swimmer Chen Xinyi are disqualified from the Olympic Games for having failed doping tests, the Court of Arbitration for Sport (CAS) says.
Brazilian police arrest two US swimmers and a top International Olympic Committee official as scandal overshadows the Rio Games.
Chinese Olympic women's swimmer Chen Xinyi tests positive for a banned substance at the Rio Olympics.
Taiwan's former weightlifting world record holder Lin Tzu-chi is suspended from competing in the Rio Olympics 2016.
The report to be released Monday into allegations of widespread state-sponsored doping in Russia has already sparked rumblings it could trigger the "nuclear option" of a full ban of Russia from the Rio Olympics.
American professional wrestler and mixed martial artist Brock Lesnar has been flagged by the U.S. Anti-Doping Agency (USADA) for a possible doping violation.
Two-time defending champions Spain's preparations for their Euro 2016 last 16 clash with Italy are disrupted as 10 players are forced to take an anti-doping test.
Russia finds out on Friday if the IAAF Council will lift the country's ban from athletics but, even if the vote goes against it, the road to Rio remains open as the IOC will make the final decision on Olympic participation.
Maria Sharapova is suspended for two years by the International Tennis Federation for testing positive for meldonium at the Australian Open.
International Cricket Council (ICC) refutes claims made by Sri Lanka Cricket (SLC) that the governing body had agreed to reimburse the money spent on clearing Kusal Perera of doping charges.
Pakistan leg-spinner Yasir Shah is given a three-month ban after admitting to a doping offence.
Russia's athletics federation has been provisionally suspended from international competition - including the Olympic Games - for its alleged involvement in widespread doping.
Russia should be banned from athletics competition, a World Anti-Doping Agency commission report has recommended.
Jamaican sprint star Usain Bolt expresses his sadness that doping issues are the talking points before world championships at Beijing.